Michael deebing



(No Model.)

M. DEBRING.

POWER HAMMER No. 368,384. Patented Aug. 16, 1887.

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iUNITED STATES PATENT Finca.

MICHAEL DEER-ING, OF SYRACUSE, NEV YORK, ASSIGNOR rIO CHRISTOPHER O. BRADLEY, OF SAME PLACE.

POWER-HAMMER.

SPECIFICATION forming part of Letters Patent No. 368,384, dated August 16, 1887.

Application tiled May 8, 1887.

To all whom it may concern:

Be it known that I, MICHAEL DEERING, of the city of Syracuse, in the county of Onondaga and State of New York, have invented new and useful Improvements in Power-Hammers, of which the following is a specification.

This invention relates to an improvement in that class of power-hammers in which the hammer-head is attached to the helve by a flexible 1o connection, and has for its object to provide simple means whereby the tension of the flexible connection can be easily regulated, and also to construct the connection in such manner that the wear will be distributed, and so that it can be readily repaired when required.

The invention consists of the improvements, which will be hereinafter fully set forth, and pointed out in the claims.

In the accompanying drawings, Figure l rep- Qo resents a side elevation of my improved hammer. Fig. 2 represents a fragmentary vertical section ofthe helve on an enlarged scale. Fig. i

3 is a top plan view of the helve, partly in section. Fig. 4 is a side elevation of the helve, 2 5 showing amodified construction of the device whereby the tension of the flexible connection is adjusted. Fig. 5 is a vertical section of a portion of the iiexible connection on an enlarged scale.

Like letters of reference refer to like parts in the several figures.

A represents the main frame of the hammer; a., the anvil; and B, the hammer-head, sliding between vertical ways b on the main frame A. C represents the helve, which is pivoted to the niain frame and provided at its rear end with cushioning-springs c.

D is the yoke, pivoted to the main frame and arranged between the springs c of the helve in' Serial No. 230,626. (No model.)

the outer strap may be composed of a single layer or thickness. The jars or shocks of the hammerhead B cause the outer strap, f which is loose upon the inner strap, f2, to move upon the inner strap, whereby different portions of the outer strap are successively presented to the contact-surfaces in the opening f in the hammer-head, thereby distributing the wear equally over the entire surface of the outer strap and preventing the strap from wearing through rapidly, as it would do if it were stationary. Vhen the outer strap, j", has become so far worn as to be unserviceable, it is replaced by a new strap. By this construction of the straps the inner main portion, f2, ofthe flexible connection is to a large extent relieved from wear.

The helve C is provided at its front end with two arms, f/g,which are secured with their rear l ends to the helve by vertical bolts 7a. rIhe outer ends of the arms g g are arranged on the front and rear sides of the hammer-head B, and are provided with collars or sleeves g2, around which the connection F passes, said sleeves being mounted on horizontal bolts secured to the bifuroated ends of the arms g g', as represented in Figs. 2 and 3. rlhe upper arm, g, is provided with elongated openings g3, through which the bolts h pass, so that upon loosening the nuts of the bolts the arm g can be adjusted on the helve C to increase or reduce the tension of the connection F.

I represents an adj listing-screw secured with its rear end to the helve C by a transverse pin, i, or otherwise, so as to be held against turning, and projecting through asmooth opening formed in a vertical'lug or ear, j, at the inner end of the arm g.

j jz are screw-nuts,which work on the screwbolt I and bear against opposite sides of the lug j.

To increase the tension of the connection F, the nuts of the bolts hand the front nut, j', of the screw-bolt I are loosened, and the screwnutjA2 is turned in the proper direction to bear against the lug j and move the arm g forwardly. When the latter has been moved forwardly sufticiently to give the connection the proper tensiom the nuts of the bolts 7i and the front roo nut, j', are tightened, whereby the arm is rigidly secured to the helve.

In the modified construction represented in Fig. 4, the lower arm, k, is made adjustable. In this case thelower arm, k, is provided with elongated openings, through which the bolts Z pass, and with a lug, l', through which the horizontal screw-bolt m passes, which is provided with an adjusting-nut, m.

1. The combination, with the hammer-head and the helve, of a stationary arm secured to the helve, an adjustable arm made lengthwise movable on the helve, and a flexible connection whereby said arms are connected with the hammer-head, substantially as set forth.

2. Theoo'mbinatiomwith the hammer-head and the helve C, provided with a stationary arm, I)r,of the adjustable arm g, attached to thev helve, a horizontal adjusting-screw, whereby the adjustable arm is moved lengthwise of the helve, and a flexible connection, F,'substan tially as set forth.

3. The combination, with the hammer-head and the helve, of a flexible connection oomposed of two straps or belts arranged loosely upon each other, substantially as set forth.

Witness my hand this 21st day of May, 1887.

MICHAEL DEERING.

Witnesses: 'Y

CALVIN S. BUNNELL, ORLANDO C. WEST. 

